G5 Keychain Access that will not quit

Model Name: Power Mac G5
Model Identifier: PowerMac7,3
Processor Name: PowerPC G5 (3.0)
Processor Speed: 2 GHz
Number Of CPUs: 2
L2 Cache (per CPU): 512 KB

Running Leopard 10.5.8

I have unlocked every file, app & log for Keychain and I cannot Restart my G5
(Keychain Access has denied logout, please Quit Keychain...)

Also have tried quitting and re-connecting my Macbook Network connection and attempting to Quit Keychain with all File Sharing BOTH on and off on both G5 & Macbook (connected by Ethernet)

Also if it helps I had 2 expired Certificates that I opened and changed to Trusted in hopes that if I had changed some thing in Certificates.

Keychain First Aid says...No Problems

Any ideas??...MacHot